package com.atguigu.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.auth.feign.MemberFeignService;
import com.atguigu.gulimall.auth.utils.HttpUtils;
import com.atguigu.gulimall.auth.vo.MemberRespVO;
import com.atguigu.gulimall.auth.vo.SocialUserVo;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.util.HashMap;
import java.util.Map;

/**
 * 处理社交登录请求
 */
@Controller
@Slf4j
public class OAuth2Controller {

    @Autowired
    MemberFeignService memberFeignService;

    @GetMapping("/oauth2/weibo/success")
    public String weibo(@RequestParam("code") String code) throws Exception {

        //1、根据code换取access_token
        Map<String,String> map=new HashMap<>();
        map.put("client_id","381862874");
        map.put("client_secret","f811315b05bba73d679db5ab44f6e5d4");
        map.put("grant_type","authorization_code");
        map.put("redirect_uri","http://auth.gulimall.com/oauth2/weibo/success");
        map.put("code",code);
        HttpResponse response = HttpUtils.doPost("https://api.weibo.com", "/oauth2/access_token", "post", new HashMap<String, String>(), null, map);

        //2、处理
        if (response.getStatusLine().getStatusCode()==200) {
            //获取到了accessToken  response.getEntity() 响应体转换为json
            String json = EntityUtils.toString(response.getEntity());
            SocialUserVo socialUserVo = JSON.parseObject(json, SocialUserVo.class);

            //知道当前是哪个社交用户
            //1、当前用户如果是第一进网站，注册进来(为当前社交用户)
            //登录或者注册这个社交用户
            R r = memberFeignService.oauthlogin(socialUserVo);
            if(r.getCode()==0){
                MemberRespVO data = r.getData("data", new TypeReference<MemberRespVO>() {
                });
                log.info("登录成功:用户信息:{}",data);
                //1、第一次使用session; 命令浏览器保存卡号。 JSESSIONID这个cookie；
                //以后浏览器访问哪个网站就会带上这个网站的cookie;
                //子域之间；gulimall.com auth.gulimall.com order.gulimall.com
                //发卡的时候，即使是子域系统发的卡，也能让父域直接使用
                return "redirect:http://gulimall.com";
            }else{
                return "redirect:http://auth.gulimall.com/login.html";
            }
        }else{
            return "redirect:http://auth.gulimall.com/login.html";
        }

    }
}
